was sick of the gpu getting hot and didn`t like the noise that it made when i was playing , so i decided to get rid of the plastic and mounted a 12cm fan on the cooler , the result is better than expected , because the temperature didn`t go over 55 Celsius anymore .

its not the bios, gtx275's were not locked via bios, that is quite aood, sounds like a defect in the gpu or your psu.

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gpu is fine, not so old 14 months and the psu is perfect had a 8800gts 320mb as physx next to it, it's just that is the reference design is maybe other bios but i'm scared that it goes wrong and destroy it, I will wait until gtx470 gets price drop